Is Smart Device:NoFeatures:High Definition,portable,handheld,digitalTheory:Fluorescence MicroscopeMaterial:Optical GlassDrawtube:BinocularMagnification Ratio:500x & UnderOrigin:Mainland Certification:NoneQuality Standard:Eu Usa Top And Oem:YesPackage:Packed In Safety Export Plastic Box With SpongeApplication:Widely Used In Microscope FieldModel :Fhcw09.971.t Microscope Objective Scale MicrometerCircle Micrometer Size:25mm X 75mm1 Div:0.1mm 0.01mm 0.05mm